Memristor

In electrical circuit theory, the memristor is sometimes considered as the fourth basic circuit element, alongside the three better-known ones: the capacitor, the resistor and the inductor.

Physics

The memristor is defined as an element in which the magnetic flux (φ) and the electric charge (q) are related by a time-independent function. It behaves like a non-linear resistor with memory, and was predicted and described by Leon Chua in 1971 in a paper that appeared in IEEE Transactions on Circuit Theory.

Types

Electrochemical Cell

The memristor was used for characterizing the behavior of electrochemical cells. Chen W-K (ed.), The Circuits and Filters Handbook, 2nd ed, CRC Press 2003, ISBN 0849309123. Chapter 12, "Circuit Elements, Modeling, and Equation Formulation"

Solid-State

Interest in the memristor revived in 2007 when an experimental solid-state version was reported Getting More from Moore\'s Law - BBC, 2007-11-13Bulletin for Electrical and Electronic Engineers of Oregon, Sept 2007 by Stanley Williams R. Stanley Williams, HP biography of Hewlett Packard. A solid-state device could not be constructed until the unusual behavior of materials at the nano level made it possible http://www.ieee-or.org/beeep/2007/sep/beeep_sep07.pdf.

Potential Applications

Williams\' solid-state memristors can be combined into transistors, though much smallerGetting More from Moore\'s Law - BBC, 2007-11-13.

References

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